From ciac@rumpole.llnl.gov Thu Mar 30 04:34:27 2000
From: CIAC Mail User
Resent-From: mea culpa
To: ciac-bulletin@rumpole.llnl.gov
Resent-To: jericho@attrition.org
Date: Wed, 29 Mar 2000 14:26:08 -0800 (PST)
Subject: CIAC Bulletin K-029: Microsoft "Registry Permissions" Vulnerability
[ For Public Release ]
__________________________________________________________
The U.S. Department of Energy
Computer Incident Advisory Capability
___ __ __ _ ___
/ | /_\ /
\___ __|__ / \ \___
__________________________________________________________
INFORMATION BULLETIN
Microsoft "Registry Permissions" Vulnerability
March 28, 2000 17:00 GMT Number K-029
______________________________________________________________________________
PROBLEM: Vulnerabilities exist in the registry of Windows NT 4.0
platforms. These vulnerabilities involve three sets of
registry keys whose default permissions are too permissive.
These three key sets are not related to each other except by
the fact that their permissions should be tightened.
PLATFORM: Microsoft NT 4.0 Workstation, Microsoft NT 4.0 Server,
Microsoft NT 4.0 Server Enterprise Edition, and Microsoft NT
4.0 Server Terminal Server Edition.
DAMAGE: The permissions may allow a malicious user who could
interactively log onto a target machine to: Cause code to run
in a local system context, cause code to run the next time
another user logged onto the same machine, or disable the
security protection for a previously-reported vulnerability.
SOLUTION: Apply the patch for appropriate hardware.
Intel: www.microsoft.com/downloads/release.asp?ReleaseID=19172
Alpha: www.microsoft.com/downloads/release.asp?ReleaseID=19173
______________________________________________________________________________
VULNERABILITY The risk is medium. The intruder needs to already have access
ASSESSMENT: to the system. The malicious code that is ran could elevate the
users rights to Administrator.
______________________________________________________________________________
http://www.ciac.org/ciac/bulletins/k-029.shtml
______________________________________________________________________________
CIAC wishes to acknowledge the contributions of Microsoft for the
information contained in this bulletin.
______________________________________________________________________________
CIAC, the Computer Incident Advisory Capability, is the computer
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